1. When someone says "meet me at home" and you think about teleporting to Lumbridge.
2. When someone wants to fight you say "meet me in world 3" and they're clueless as to what that means.
3. You accidentally call your friend by their RuneScape name
4. When you see someone cooking and ask them "What is your cooking level?"
5. You look at party hats as prized possessions.